AS53363TANGRAM CANADA INC.
CanadaRegistryARINAs of 11th November 2026, AS53363 (TANGRAM CANADA INC.), a network registered in Canada with ARIN, originates 4 IPv4 prefixes covering 2.8k addresses. By IPv4 address space that makes it the 22,787th-largest of the 80,733 networks we see originating IPv4, and the 545th-largest of 1,606 in Canada. It is seen behind 1 upstream network, most often AS32489 (Amanah Tech Inc.). 25% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 25% of its routes reach at least 90% of full-feed peers.
At a glance
IPv4 prefixes
IPv6 prefixes
IPv4 addresses
IPv6 /64s
Upstream graph
The networks AS53363 is seen behind, one and two hops out, drawn from real AS paths.
Networks observed one and two hops upstream of AS53363 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.
Neighbouring networks
2
adjacent networks
- Upstreams
- 150%
- Peers
- 150%
- Downstreams
- 00%
Networks carrying this one's traffic toward the rest of the internet.
| Network | Country | Relationship | Paths | Vantage pts |
|---|---|---|---|---|
| AS32489Amanah Tech Inc. | CA | Peer | 78 | 75 |
Prefixes
The largest blocks AS53363 originates, widest first.
| Prefix | Addresses | Visibility |
|---|---|---|
| 199.204.72.0/21 | 2k | 75/76 |
| 146.19.106.0/24 | 256 | 1/76 |
| 171.22.122.0/24 | 256 | 1/76 |
| 193.203.203.0/24 | 256 | 1/76 |
Routing health
How AS53363's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.
RPKI origin validation
- Valid25.0%1
- Invalid0.0%0
- No ROA75.0%3
Propagation
- Globally propagated90% of full-feed peers or more25.0%1
- Partially propagated40% to 90%0.0%0
- Seen by few peersUnder 40%75.0%3
Prefix sizes
IPv4 — 4 prefixes
Recent changes
Announcements that started or stopped since 12th Oct 2026.
- Withdrawn85.208.108.0/243rd Nov 2026
- Announced146.19.106.0/2429th Oct 2026
- Announced171.22.122.0/2429th Oct 2026
- Announced193.203.203.0/2429th Oct 2026
- Announced85.208.108.0/2429th Oct 2026
Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.